Henry joseph binnott



July 16, 1929. H. J. SINNOTT RELAY DISTRIBUTOR Filed July 16, 1927 "mum?:osm'n Patented July 16, 1929. I

UNITED STATES 1,721,058 PATENT OFFICE.

airmen, or ran nocnwn'; mrw roux, ASSIGNOR' To THE coulmnomr. cum comm,or new max, 1:. Y.

my nrs'rnmuroia My invention pertains to telegraph systems andparticularly relates to'high speed telegraph or cable systems in whichthe signals arerecorded upon a tape or other medium. 7 4

' Received signals which are recorded in the operation of highspeedtelegraph or. cable circuits are usually transcribed before delivery inme'ssage form. The speed at which thesignals are recorded oftenexceeds the speed of the transcribing operator thereby confusing theoperator, causing the recording tape to pile up and tangle, andresulting sults' by employing) v transcription.

usually'in' mutilation of the tape and loss of messages. I I

The principal object of my invention comprises providing a system ofcircuits and apparatus whereby. signals comprising mes sages toberecorded-may be distributed to two or more recording instruments inorder that-several transcribing operators may be employedto divide thework and thus greatly facilitate and insure the handling of the traflic.,1

I accomplish the above noted desirable rea novel' relay system in effectinterposed etween the initial telegraph or cable receiving relay and aplu rality of recording instruments whereby groups of signals comprisingcomplete mes jsages are distributed between the several recordinginstruments to divide the work of f In the drawing which accompanies andforms a part of this specification I have illustrated diagrammaticallyone complete em- 'bodiment of my idea as applied tocable telegraphyutilizing two direct writers-erre cording instruments. I v

Referring now to the drawing, cable 1 is shown with an earth connection2 and with the initial receiving or cable relay 3 connected thereto asusual. Relay 3 is adapted to operate the local corrector relays 5 and 6through the medium of'battery 4. The forward .or' marking 'contactsofthe relays 5 and 6 are connected to the windingsof the application a ledluly 16,

the other terminal. of the windin 1927. Serial no; 200,197.

deemed therefore to need no detailed description; Mynovel-relay systemis essentially interposed between the relay system justdescribed and therecording apparatus as will now be pointed .out. The relay v18 ispolarized and provided with tongues 19 and 20, carried on a commonarmatureshaft 17 but insulated therefrom and from each other. Tongue 19is associated through one of its contacts withone pole of battery23,.the other pole of which is connected to a pole of opposite polarityof a similar battery 24 and through. condenser 22 and bridged resistance21 with one terminal of the windingof relay 18 and also throughresistance 27 withrelay. The midpoint of the relay winding is connectedto the back contact of relay 5. The remaining terminal of Battery 24 isconnecttd to the other contact associated with tongue 19,. which isconnected through res tardation coil "10 with the back contact of relay6. This system ofcircuits and apparatus constitutes the well knownGulstad" of the I generative-relay 12and to the remaining oontactassociated with tongue 20. The remain-' ing terminals of-the coils ofwriters 14 and 15. are connected through conductor 16 with the tongue 20of relay 18. This results in the direct writers being connected inseries relation to operating impulses received through the contacts ofrelays 11 and 12 from battery 13 and as tongue 20 is moved to makecontact alternatelywith its contacts, directwri-ters 14 and 15' will bealternately regenerative relays 11 and 12. Thewindings usual system ofcircuits and apparatus empl'eged to. receive,- correct and regenerate cashortcircuited and rendered thereby inoperare further connected throughthe common ative.'

Theoperation lows: v

Relay '18 iscontrolledby the incomingsignals re ived by relay 3 andremains deenergizedfihnd with its tongu return conductor 26 and"throughbatte' 9 with the tonguesofbothrelays 5 an 6. The organizationthus far described is the of my relaysystem is as 01.?

. e at rest on 8 Sign recording Pllrposes and is h con act with which itlast made contact 0 so long as a continuous sequence or group ofincoming signals is being received, because armatures 7 and 8 of relays6 and 5 are during such time in constant motion, and the circuit throughtongue 19 of relay 18 is therefore not closed for the predeter-, minedperiod of time necessary to charge condenser 22 to cause the operationof-re lay 18. If however, the sending operator provides a pause ofpredetermined time duration between messages both armatures 7 and 8 willcome to rest on their respective back contacts to close the circuit fromsplit battery 23-24: through tongue 19 for a time interval equal to thatprovided by the sending operator and sufiicient to charge condenser 22to initiate the vibration of relay 18, and thus to alternatel shortcircuit direct writers 14 and 15. of course distributes a completemessage to first one and then the other of the direct writers and sodivides the work for the transcribing operators. The direct writers areoperated preferably in series, with one or the other alternately shortcircuited, in order that a poor contact between tongue 20 and either ofits contacts will not result in the loss of a message.

Condenser 22 is provided with a non-inductive shunt resistance 21 toprevent a gradual accumulation of charge which would in time besufiicient to reduce the effective capacity of the condenser and causerelay 18 to operate ontransmitting pauses of less than the predeterminedtime interval provided for the purpose.

I have found that for cable telegraphy a ause equal .to the timeinterval represeggted y the passage through the transmitter of thelength of tape between six center holes, when provided between messages,operates my relay system very effectively in conjunction with acondenser of approximately 40 microfarads shunted with a 5,000 ohmnoninductive resistance, and a variable resist-' ance of 300 ohms withwhich to refine the speed adjustment. Obviously the timing of thevibrations of relay 18 is determin by adjustment ofv resistance 27 andcondenser 22 to attain the speed of operation uired. The speed should besuch that mature 20 moves from the contact upon which it. is at restwhile the,relay is de-energized to the other contact in the timeinterval selected and interposed between messages. In other words in thetime interval that the tongues 7 and 8 are at rest on their back tardthe current to permit condenser 22 to discharge on isolated singleletter'-words suchasEorT.

While I have shown and described but one embodiment of my device itshould be clearly understood that I may vary the dea plurality ofreceiving relays, a pair 0 ink writers, vibrating relay means, means forsuppressing operation of said vibrating relay means only while signalsare being received, saidvibrating relay means determining which one ofsaid ink writers shall record the received si al.

2. In a relay distri utor, means for re-= ceiving telegraph signals, apair of signal recording means and means operable b the cessation ofsaid signals for a pr etermined time interval for distributing saidsignals in groups to said recordin means in alternation, both of saidrecording means being associated with said receiving means.

3. In a'relay distributor, means for receiving signals, a first andsecond means for recording said signals and means operable only by thecessation of said signals for a predetermined-period of time fordetermining whether said first or said second recording means shallrecord said si als, said first and second recording means ing bothassociated with said receiving means. v

4. In a relay distributor, means for receiving signals, a plurality ofmeans for recording said signals and means operable only by thecessation of said signals for a predetermined period for determiningwhich one of said plurality of signal recording means shall record saidsignals, allof said recording means being associated with said receiver.

5. 1m a relay distributor, means-for receiving signals, a plurality ofmeans for recording said signals, and means operable only by thecessation of said signals for a predetermined time interval forrendering first one and then another of said recording meansinoperative, all of said recording means being associated with saidreceiver.

6. A signal receiving system comprisimligg,

a plurality of receiving relays, a pair of writers, 'vibrating relaymeans, means for suppressing operation of said vibrating relay meansonly while signals are being re,

celved, said vibrating relay means determining which of said ink writersshall record the received signal said vibrating relay means beingconnected to said ink writers in such manner as to preventrloss of nalrecord in event of failure'of said v1 brating relliafi contacts. r

. NR-Y JOSEPH SINNOTT.

